Product Details

Product Description

DFU-300 200-300m efficiency tunnel boring machine for tunnel projects

DFU-300 tunnel boring machine mainly used in coal, geology, metallurgy and engineering with large diameter, or horizontal tunnel drilling projects.

Technical Parameter

1.Drilling depth
Φ55mm(2.17inch)	300m(984feet)
Φ71mm(2.80inch) drill rod	200m(656feet)
2. Drill rod spec.	Φ55×1500mm drill rod ; Φ71×1500mm drill rod
3. The range of spindle rotating speed	425-1280rpm
4.The max. rotating torque of spindle	795 N·m(586 lbf·ft)
5. The working pressure:	25 Mpa(3626 psi)
6. Spindle stroke	1600mm(63 inch)
7. The max. Lifting force of drill head	62KN(13938 lbf)
8. max. Feeding force of drill head:	33KN(7418 lbf)
9. The sliding stroke of mast	495mm(19.5 inch)
10. The swing angle of mast bracket (left & right)	90°
11. The swing angle of arm(up and down)	100°
12. Power unit	YB225M-4(dIICT4) explosion-proof

Features

1. It is separate in structure, small in size, light in weight, flexible in movement and convenient in operation.

2. The hydraulic pump is driven by explosion~proof electric motor through operating system, then the hydraulic pump
enforces hydraulic motor to make drill head rotate, and at the same time, the movement of drill head is realized by oil
cylinder & chain double speed mechanism.

3. Hydraulic chuck can satisfy the function of shackles and power-off protection.

4. The sliding and extending & retracting function of the mast makes it convenient for the bottom of mast to touches the
ground or platform, thus the drill rig will be more stable.

5. The swinging arm and mast can do luffing movement, which satisfy the request of multi-angle drilling.

6. The range of spindle rotating speed is wide and the torque is large.

Contact

Certifications

Our Company

FAQ

1.Worried about the authenticity of seller?
——We are a professional drilling equipment manufacture in China. We do have our factory and office. We master the technology, and constantly adjust our products according to the market trend and customer feedback, ensure product quality.
As a professional drilling equipment manufacturer, you are welcomed to visit our factory to see and try your machine by yourself before purchasing.

2. First time to using drilling machine?
—The machine is not too complex to make people feel fuzzy. Second, we provide operation manual and DVD to guide you. Then, we also provide Free training in our factory if you were possible to come;

3. How to deal with the worn parts of the machine?
——We provide some wearing parts for you when the first time you purchase goods from us;We also provide wearing parts for your choice.

4. About the warranty?
——All accessories of our machinery is available at Factory-price all Year around. We always do our best to solve our customers' worries.